Ink cartridge



FIG. 1 is a top, front, right-side perspective view of an ink cartridge;

FIG. 2 is a top, front, left-side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a top, rear, left-side perspective view thereof.

The broken lines depict unclaimed portions only and form no part of the claimed design. 

CLAIM The ornamental design for an ink cartridge, as shown and described. 